From what I understand, wolves are very hard on coyotes.
I have seen some here in the southern part of the state that you would swear was as big as a wolf.
They have less fear because they are hard to hunt in the woods and brush. There is very little open country and its quite hilly.
They come out mostly at night and you seldom see them out in the crop fields in the open.
I have about 6-10 that live in the back of my woods and hear them at night when they kill deer.
You can always tell when they make a large kill because they make lots of noise howling and fighting over it.
A buddy of mine shot one a few years ago that was close to 70 lbs! I forget the exact weight but it was in the high sixties.